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Multi-vector sensing in cardiac devices with detection combinations

  • US 10,362,948 B2
  • Filed: 10/19/2016
  • Issued: 07/30/2019
  • Est. Priority Date: 10/23/2015
  • Status: Active Grant
First Claim
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1. A cardiac rhythm management device comprising at least first and second input nodes to define a least a first sensing vector and operational circuitry for analyzing cardiac signals on at least two data streams, the operational circuitry being configured to:

  • receive a signal from the first sensing vector;

    in a first data stream, apply a first filtering criteria to the signal from the first sensing vector;

    in a second data stream, apply a second filtering criteria different from the first filtering criteria applied to the signal from the first sensing vector;

    combine the first and second data streams together to create a series of combined sample points for the cardiac signal each having an amplitude determined at least partly from each of the first and second data streams;

    detect cardiac events in the series of combined sample points; and

    calculate a cardiac rate using the detected cardiac events.

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